Here's what rhymes with specifiable.
viable liable justifiable pliable verifiable certifiable reliable identifiable classifiable notifiable deniable rectifiable unreliable undeniable unjustifiable unidentifiable unverifiable Words that almost rhyme with specifiable
parietal sizable sizeable survivable advisable assignable likable likeable risible liveable desirable definable excitable maniacal ascribable decidable unlikeable unliveable undesirable ammoniacal inadvisable libidinal realizable describable reconcilable undefinable analyzable recyclable climbable recognizable irreconcilable indefinable cognizable demoniacal indictable indescribable nonassignable unrecognizable monomaniacal